About Quality Glass Block and Window Company

Quality Glass Block and Window is an industry-leading wholesale glass block supplier. Since 1976, we have worked with homeowners, builders, architects and distributor/dealers undertaking new construction and remodeling projects. As a nationally respected glass block company and vent manufacturer with a massive warehouse, we have the capability to assist you with large-scale projects, as well as to provide the products and guidance you need for smaller jobs and highly customized requirements.

The American-made products we provide result in stunning windows, shower systems, vinyl windows and more. When you buy glass blocks and windows from Quality Glass Block and Window, we provide the materials, expertise and installation support to ensure your project turns out exactly as you envisioned it.

Why Quality Glass Block and Window Is the Leader

Quality. We offer an array of high quality products, including loose glass blocks, glass block windows, vinyl windows, glass block shower kits and vents. Our products are manufactured by Pittsburgh Corning and other industry leaders and are made to last.

Expertise. We’ve taken on a multitude of challenging construction and remodeling projects, so we can offer you creative design ideas, reliable product specification data and labor-saving installation guidance.

Large Inventories. With the largest inventory of glass blocks for sale in the Midwest, our customers enjoy fast, reliable delivery.

Savings. Sale items include overstocks, discontinued items, items ordered in error (we sometimes make mistakes!) and glass block or window materials we order in such large volume that we can pass the savings on to you.

Free Shipping. If you are in the Chicagoland area, you may qualify for free delivery. Contact us to learn more.

Warranty. All of our products are backed by a limited warranty. Our glass blocks are made by industry leader Pittsburgh Corning, and our vinyl windows are made by Silver Line, an Andersen Company.

Whether you are a homeowner, builder, architect or contractor or dealer, we can help you find the best product for your project. Contact Quality Glass Block and Window to learn more about our complete catalog of products and services. Our team is eager to answer any questions you have.